【单选题】Be careful! Don't cut ________ with thenew knife.
【单选题】The father helped his children________thenew bicyclethey bought online.
【单选题】What does the writer say about advertising?
A.
It causes pollution directly.
C.
It puts litter under control.
D.
It brings about waste.
【单选题】Not until yesterday ________ anything about thenew advertising campaign.
【单选题】硝酸甘油没有下列哪一种作用硝酸甘油没有下列哪一种作用
【单选题】These children are so full of__________ that they cannot keep still.
【单选题】单相异步电动机空载或在外力帮助下能启动, 但电机转向不定,可能原因是( )。
【单选题】Several scientists are working together to create ______ they hope will be the cheapest form of energy in the near future. [ ]
【判断题】违反体育运动精神的犯规包含 防守队员在试图中断对方的快攻时,从进攻队员的身后或侧面与其造成身体接触,并且此时,在该进攻队员和他所进攻的球篮之间没有防守队员( )。